Surgical treatment of brainstem tumours with special emphasis on the operative approach through the fourth ventricle floor.
D020295:Brain Stem Neoplasms / Q000145:classification / Q000601:surgery*; D020546:Fourth Ventricle / Q000033:anatomy & histology / Q000601:surgery*; D006801:Humans; D008279:Magnetic Resonance Imaging; D019060:Minimally Invasive Surgical Procedures / Q000379:methods; D019635:Neurosurgical Procedures / Q000379:methods